4-5 October 2023, Conference, Copenhagen– 43rd AIVC- 11th TightVent - 9th venticool joint conference
From - 31 March, 11:22

The 43rd AIVC conference "Ventilation, IEQ and health in sustainable buildings" will be held on 4 & 5 October 2023 in Copenhagen, Denmark together with the 11th TightVent conference and the 9th venticool conference. The event...

AIVC's Ventilation Information Paper (VIP) #45.8: Building and ductwork airtightness in China
From - 6 July, 12:00

The AIVC is happy to announce the release of a new publication!Ventilation Information Paper #45.8: Trends in building and ductwork airtightness in ChinaThis paper is part of the new VIP series being developed and dealing with trends in building and ductwork airtightness...

EBC News July 2023
From - 5 September, 09:21

EBC News is published regularly each year in email format. It contains updates on ongoing and forthcoming research projects, and features new publications and EBC other EBC project information, as well as focus articles on the EBC participating countries. It is intended for a general audience of those active in fields relating to operational energy saving for buildings and communities...



Save the date! Meeting #08 of the Advisory Board of Practitioners for Annex 80 & venticool & AIVC!
From - 5 September, 09:47

The Advisory Board of Practitioners an initiative of Annex 80, AIVC and venticool, was founded to put results of scientific research into action by establishing strong ties to practitioners and to include their practical experience in future research projects....

The CBE Thermal Comfort Tool
From - 5 September, 09:48

The Center for the Built Environment (CBE) Thermal Comfort Tool, developed at The University of California at Berkeley, is a free online thermal comfort tool allowing users to perform complex thermal comfort calculations and offers dynamic and interactive visual representations...

Heat-related mortality in Europe during the summer of 2022
From - 5 September, 09:48

The recent article “Heat-related mortality in Europe during the summer of 2022” by Joan Ballester et al. dated July 10, 2023 and published in the Nature Medicine journal, quantified the mortality associated with record-breaking temperatures during...



TightVent newsletter June 2023
From - 6 July, 11:27

The June 2023 issue of the TightVent newsletter is now available! Specific contents include:  Foreword – 19 June 2023 (10:00 – 11:30 CET) | AIVC & TightVent Webinar – Alternative methodologies to evaluate airtightness 4 -5 October 2023 –11th TightVent- 43rd AIVC… 

Feedback from the “Airtightness” session at the AIVC Workshop, in Tokyo, “Towards high quality, low-carbon ventilation in airtight buildings”
From - 6 July, 11:27

The AIVC 2023 workshop “Towards high quality, low-carbon ventilation in airtight buildings” organized in collaboration with NILIM and BRI of Japan was held on 18-19 May 2023...

13th International BUILDAIR Symposium - Collection of presented abstracts
From - 6 July, 11:25

We are happy to inform you that a new collection is now available on AIVC’s AIRBASE, including the BUILDAIR 2023 Symposium abstracts which were presented during June 2- 3, 2023 in Hannover, Germany. 

The full collection  is freely accessible  and can be found...



IEQ-GA Presidential column of July 2023 is out!
From - 5 September, 10:02

I want to thank all of the ‘live’ and ‘virtual’ participants on June 27th, 2023 at the General Assembly and a Board of Directors meeting in Tampa, Florida, USA. These meetings were well attended by IEQ-GA members’ representatives as well as guests, prospective supporters, and guests, both in person and virtually. As outlined in this Presidential Column, IEQ-GA...

Indoor Environments Show - Video Recordings available
From - 6 July, 11:40

Τhe Indoor Environmental Quality Global Alliance ΙEQ-GA and ISIAQ (International Society of Indoor Air Quality and Climate) have partnered with Healthy Indoors® /IAQNET LLC to create a unique video show and podcast – Indoor Environments: Global Research to Action – exploring how research can be translated to practice on a variety of topics related to...

IEQ-GA Supports The Commit to C.A.R.E. Program
From - 5 September, 10:03

At its June 27th, 2023, meeting, the IEQ-GA Board of Directors voted unanimously to support the Commit to CARE program. The Commit to C.A.R.E. provides free resources and tools for businesses to safeguard their employees and communities from infectious diseases...



Dynastee newsletter issue 2023/20 now available
From - 6 July, 11:52

The twentieth issue of the DYNASTEE newsletter is now available for download. Contents include: Foreword Sponsorship announcement Announcement of the Summer School 2024 Outcomes of the Spring School 2023 Outcomes of the European Building Performance Symposium Datasets made available...

Announcement Summer School 2024 in Almeria, Spain, 11 - 18 September 2024
From - 6 July, 11:52

Whole building energy performance assessment. From in-situ measurements to smart metering data. After nine Summer/Spring Schools and two training Webinars, DYNASTEE is proud to announce that for the 10th time it will organise a physical...

About the Spring School 2023 at the University of Salford, 24-27 April.
From - 6 July, 11:52

This analysis training event was a condensed format of the regular Summer School, which has been organised for over a decade and which has attracted over 200 participants. Lectures have covered important aspects of dynamic data analysis applied to real data from in-situ measurements.  After two years of webinars...


EU news

European Green Deal: Energy Efficiency Directive adopted, helping make the EU ‘Fit for 55’
From - 5 September, 10:31

Today, the EU has officially concluded the inter-institutional negotiations on the enhanced legal framework for energy efficiency. The Council’s endorsement follows the one given by the European Parliament earlier this month and marks the final step in the legislative process that started in July 2021 as part of the ‘Fit for 55’ package...

International Energy Agency report: Energy Efficiency - The Decade for Action
From - 5 September, 10:23

 The report Energy Efficiency –  The Decade for Action, highlights the importance of energy efficiency actions in the coming years. The analysis examines recent trends relating to demand and policies and the next steps for the improvement, implementation and investment required for an energy efficient future...  

EU Building Stock Observatory: monitoring the energy performance of buildings across Europe
From - 7 September, 11:40

The Commission has launched a new, improved version of the EU Building Stock Observatory (EU BSO). First established in 2016, the EU BSO is a web tool that monitors energy performance and decarbonisation-related buildings data for all EU countries. It now includes more reliable data for basic building stock indicators, higher quality data...

Exploring the role of occupants in buildings' energy performance gap
From - 5 September, 11:39

This article explores the energy performance gap phenomenon in the context of building construction and retrofit projects and focuses on the role of occupants.

Before new buildings are constructed, or existing buildings are retrofitted, their energy performance is generally estimated for various purposes, such as design optimisation, system configuration, compliance documentation...

Space cooling technologies for buildings: Alternative solutions to conventional applications
From - 5 September, 11:45

With longer and more frequent heat waves, the demand for space cooling is dramatically increasing globally. How can we make cooling systems more sustainable?Almost 99% of Europe’s space cooling consumption is currently comprised of vapour compression systems. With summer heat waves rising in frequency and ...

REHVA Brussels Summit 2023, November 13-14
From - 5 September, 11:41

Join us in Brussels to discuss "Indoor Environmental Quality, Digitalization and Skills in the Decarbonization of Buildings" during the Brussels Summit 2023 ( November 13-14). 

 The first day of the Summit will focus on the internal activities of REHVA. During the Standing Committee Meeting, members will gather to discuss and address key issues and initiatives related to our organisation. This session provides an opportunity for REHVA members to actively engage in shaping the organization's agenda and strategies...

Could painting rooftops white help lower temperatures? Scientists want Barcelona to try it out
From - 5 September, 10:37

Scientists have an ‘excellent’ idea for combating the capital of Catalonia's heat island effect, as heatwaves intensify. The terracotta balconies of Barcelona have, for a long time, been synonymous with the city of love. But the palette of its skyline could be changing for climate reasons.  A proposed makeover would see the rooftops of the Catalan capital...

Cooling commercial buildings is six times more energy-intensive in hot climates than cold
From - 5 September, 10:27

The energy intensity for cooling commercial buildings in the United States depends on the climate the building is located in. Energy intensity in buildings is the energy consumed per square foot of floorspace. U.S. commercial buildings in hot or very hot climates, which are primarily in the southernmost parts of the country, were more than six times more energy-intensive for cooling (14.2 thousand British thermal units per square...

Next generation cooling systems: An analysis of two case studies with active and passive solutions in buildings
From - 5 September, 10:20

The demand for sustainable space cooling technology is increasing globally. Passive cooling systems should be implemented, and when necessary, combined with active cooling. This article provides two practical examples, one implementing an active system and the second applying a...

EU Buildings Climate Tracker: Urgency to close the buildings decarbonisation gap
From - 5 September, 10:41

The newly developed EU Buildings Climate Tracker finds that the EU is facing a growing gap in advancing towards climate neutrality in the sector. This first edition provides evidence for the urgent need for additional action that should be reflected in a transformational...

Practical Approaches to Cooling: A UK Perspective
From - 5 September, 10:55

Reducing the need for air conditioning is necessary and feasible. Passive measures for cooling are advantageous. Commentaries. Julie Godefroy (CIBSE and Julie Godefroy Sustainability) and Anastasia Mylona (CIBSE) respond to the Buildings & Cities special issue 'Alternatives to Air Conditioning: Policies, Design, Technologies, Behaviours'. Proactive options already exist to adapt buildings to hotter summers and extreme events. A balanced approach to risk, complexity and detail is called for...

Transforming urban sustainability: new study reveals cities’ crucial contribution to meeting decarbonisation goals
From - 5 September, 10:52

New research on ScienceDirect sheds light on cities' key role in combating climate change and aligning local energy plans with national strategies. Taking inspiration from the commitments and plans made by countries to address climate change, cities are becoming key participants in the effort to reach goals for reducing carbon emissions. Recognising their importance...



...including a list of our recent webinar recordings 


 Alternative methodologies to evaluate airtightness (more info)


 The pulse technique

 Christopher Wood (University of Nottingham, UK)

 Luke Smith (Build Test Solutions, UK) 


The Air Tightness Tester (ATT)

Niek-Jan Bink (ACIN, The Netherlands) 


 Novel IR and acoustic methods

Benedikt Kölsch (Cerema/DLR, France)


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